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You searched for: mediatype:texts AND collection:ufgdp AND subject:"Railroads--Signaling--Block System"
[texts]Title 49--Transportation and railroads, Chapter I--Interstate Commerce Commission, Subchapter A--General rules and regulations, Part 134-Signal failure reports : monthly report of failure of block signal systems, interlocking, automatic train stop, train control, and cab signal devices, and other similar appliances, methods and systems to indicate or function as intended - United States.: Interstate Commerce Commission
Keywords: Railroads--Signaling--Block system; Signals and signaling--United States
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